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Structure and magnetic properties of sputtered (Nd,Dy)(Fe,Co,Nb,B)[sub 5.5]/M (M=FeCo,Co) multilayer magnets.
- Source :
- Journal of Applied Physics; 5/15/2002 Part 1, 2 & 3, Vol. 91 Issue 10, p7890, 3p, 1 Black and White Photograph, 4 Graphs
- Publication Year :
- 2002
-
Abstract
- The magnetic properties of nanocomposite multilayer magnets of the (Nd,Dy) (Fe,Co,Nb,B)[sub 5.5]/M (M = Co,FeCo) on Ti-buffered Si substrates have been investigated. X-ray diffraction results reveal that the Nd[sub 2]Fe[sub 14]B-type phase in almost all the films is randomly oriented. Different thickness χ (nm) for Co layers and y (nm) for FeCo layers were adopted in the multilayers. It is found that high remanence is achieved in the nanocomposite multilayer films consisting of the Nd[sub 2]Fe[sub 14]B-type phase and soft magnetic phase for Co with 6 ≤ χ ≥ 4 and for FeCo with 10 ≥ y ≥ 6. The enhancement of the remanence in the nanocomposite multilayer films is attributed to the exchange coupling between the magnetically soft and hard phases. Increasing the soft magnetic components results in a continuously decreasing coercivity. [ABSTRACT FROM AUTHOR]
- Subjects :
- METALLIC composites
NANOSTRUCTURES
SPUTTERING (Physics)
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 91
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 6666834
- Full Text :
- https://doi.org/10.1063/1.1451581